If you would like to mount a GoPro action camera on your TONFLY helmet, then choose the “GoPro Safety Mount”. Its design avoids that lines or a pilot chute can entangle with the exposed camera.
Choose CURVED when mounting the GoPro on the forehead section of your helmet or on top of a entirely round shaped helmet (like the PERFORMER or the SPEED helmets)
Choose FLAT when mounted on a flat surface of your helmet. For example on top of a 1X, 2X or 3X or CC1 helmet.